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All Journal JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY Jurnal Teknik Mesin Cakram Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Jurnal Pengabdian Masyarakat: Darma Bakti Teuku Umar Zona Laut : Jurnal Inovasi Sains dan Teknologi Kelautan
Syurkarni Ali
Jurusan Teknik Mesin Fakultas Teknik Universitas Teuku Umar
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation Other

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ANALISA TINGKAT KEAUSAN UNDERCARRIAGE BAGIAN SEGMENT SPROCKET BULLDOZER KOMATSU D85ESS-2 Aries Aries; Syurkarni Ali; Pribadyo Pribadyo
Jurnal Teknik Mesin Cakram Vol 5, No 1 (2022)
Publisher : Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jtc.v5i1.21280

Abstract

Abstrak: Bulldoser adalah alat berat yang sering digunakan untuk meratakan tanah, pasir, kerikil, dan material lain dengan daya dorong atau tenaga yang tinggi. Bulldozer memiliki komponen yang terletak di bagian bawah alat berat undercarriage yang berfungsi sebagai media penggerak saat berpindah dari satu tempat ke tempat lainnya. Penelitian ini bertujuan untuk mengetahui tingkat keausan undercarriage segmen sprocket bulldozer Komatsu D85bESS-2. Analisis data dilakukan di PT. Wirataco Mitra Mulia. Periode penelitian dimulai dari Desember 2021 hingga Januari 2022. Keausan ini sering terjadi ketika bushing bersentuhan dengan sproket segmen gigi. Hasil pengukuran menunjukkan bahwa penggunaan bulldozer selama 160 jam memiliki tingkat keausan sebesar 11,3%, untuk 320 jam memiliki tingkat keausan sebesar 19,56%, dan untuk penggunaan selama 480 jam memiliki tingkat keausan sebesar 31,3%. Sedangkan penggunaan segmen sprocket adalah 1.533 jam.
Perancangan Touchless Hand Washer Sistem Pijakan Kaki untuk Pencegahan Penyebaran COVID-19 Sulaiman Ali; Syurkarni Ali; Herdi Susanto; Rita Hartati; Zahir Raditya
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 6, No 2 (2020): Oktober
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (698.729 KB) | DOI: 10.35308/jmkn.v6i2.3075

Abstract

The spread of the Coronavirus Disease (COVID-19) outbreak in all parts of the world is increasing, including in Indonesia, a virus that is easily transmitted and spreads through close contact and droplets by touching hands with other people or with objects that have been exposed to COVID-19, one of the reasons for this, reventing the spread of COVID 19 by washing hands frequently with soap. Hand washing tools have been developed, generally still using direct touch to the water tap and soap dish, the Touchless Hand Washer (THW) touchless hand washing tool is specially designed and manufactured in accordance with the COVID-19 pandemic conditions without touching with hands directly on the water tap and a soap holder with a footrest system, making it more practical, hygienic and not directly contaminated with previous Touchless Hand Washer users which could cause COVID-19 transmission from previous users. Touchless Hand Washer (THW) is designed with a pyramid-shaped frame that will support the water toren that does not harm or the water toren falls for Touchless Hand Washe users, with a THW tool height of 120 cm, top width 70 x 70 cm and bottom width of 90 x 90 cm. Keywords—Hand-washing tool, COVID-19, washing hands, touchless hand washer 
Analisis Ship Resistance Untuk Menentukan Daya Main Engine Kapal Sulaiman Ali; Fitria Ramadani; Syurkarni Ali; Delly Syahputra
Zona Laut : Jurnal Inovasi Sains Dan Teknologi Kelautan Volume 3, Nomor 2, Edisi Juli 2022
Publisher : Departemen Teknik Kelautan Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/zl.v3i2.22027

Abstract

Calculation of ship resistance can be done using mathematical calculations. The value of the ship's resistance is needed to determine the power of the ship's main engine, which is formed from the shape of the hull itself. This research is designed to obtain a model using naval architecture software. From the cargo ship model, it will then be calculated to produce the required value of resistance and ship power. The method used in the calculation uses the Compton Method. The maximum speed of the cargo ship is 12.5 knots, resulting in a resistance value of 309.8 Kn with a power of 2671,370 Hp.
ANALISA PENGARUH KADAR AIR PADA BIJI SAWIT (NUT) TERHADAP EFISIENSI PEMECAHAN BIJI SAWIT (NUT) DI PT. KARYA TANAH SUBUR Asnim fuaddi; Syurkarni Ali; Herri darsan
Jurnal Teknik Mesin Cakram Vol 5, No 2 (2022)
Publisher : Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jtc.v5i2.27083

Abstract

Pabrik kelapa sawit memperoleh kernel melalui hasil produksi biji pada stasiunnut dan kernel recovery melalui tahap pemecahan nut adapun dimasukkan pada mesin ripple mill. Pemisahan dari nut perlu mempunyai efesiensi yang besar agar didapatkan ha sil yang maksimal dalam proses produksi.Penelitian ini bertujuan untuk mengetahui: 1) penurunan tingkat kadar air pada nut yang telah melalui proses pada stasiun sterillizer, digester dan press serta nut silo, serta 2) kaitan diantara paameter dari air sertaefisiensipada pemisahan biji. Dilakukannya analisa ini melalui menganalisa kadar dariair yang m elewati saluran pemanas adapun dipakai microwave oven, yaitu melalui cara diatur wakt unya serta derajat panas yang dipakai. Hasil dari analisa ini yaitu ditunjukkan maka kadar dari air dalam biji yang besar bisa berdampak nut mempunyai sifat yang elastis hingga pemecahan nut jadi kurang efesien. Pemecahan nut memiliki efesiensi ratanya yaitu s ebanyak 97,6%. Yang artinya efisiensi di bawah standar yang ditentukan sama perusahaan.Kadar air pada nut Memiliki hubungan yang signifikan terhadap Efisiensi pemecahannut, yaitu 0,956.
Analisis Pengaruh Panas dan Beban terhadap Kerusakan Traveling Grate pada Boiler Di PLTU Tembilahan 2x7 MW Sandi Saputra; Siswo Pranoto; Yopan Rahmad Aldori; Syurkarni Ali; Junaidi; Andri Herlambang; Muhammad Yusuf Rahmansyah Siahaan; Muhammad Idris
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 7 No. 2 (2023): Edisi Desember 2023
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v7i2.6094

Abstract

Rack grate is a component composed of rack clip and rack bone arrangement that serves as a dropping cross-section media of coal and as a media of coal burned in the boiler.  As part of the main component, the rack grate can be regarded as one of the components that ensure the success of combustion in the boiler. Failure to this component will certainly interfere with the implementation of boiler operations. In addition to require the boiler to be shut down while repaired, in addition to requiring the boiler to be extinguished during repairs, the inoperability of the boiler makes the steam production process at the PLTU impossible and ultimately the electricity generation process cannot be carried out as usual. Damage to the rack grate component has a type of plastic deformation with variable loads and fluctuating heat, which means that the thermal stress in the system has reached the yield stress point. To find out the root cause of this component damage quickly and accurately, an analysis of the results of the implementation of engineering software in this case Ansys Workbench, and a comparison of actual operating data, and data design is the best choice. Lastly, by evaluating the optimum values of temperature, equivalent stress and strain, total deformation, input process parameters value can be controlled to the desired values, resulting in less stress concentration occurs, so that the damage to the workpiece can be reduced or even eliminated.
Study Pembuatan dan Karakterisasi Paduan Ingat Bentuk CuAlZn Stefanus Andika Debby Purwanto; Budiarto; Bantu Hotsan Manullang; Syurkarni Ali; Din Aswan A Ritonga; Julian
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 7 No. 2 (2023): Edisi Desember 2023
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v7i2.10017

Abstract

A study on the preparation and characterization of CuAlZn shape-remembering alloys has been carried out. The objective of the study was to determine the effect of mass variation of Cu and Zn on crystal structure, hardness and tensile strength of CuAlZn shape-remembering alloys with powder metallurgy. Sintering at 900°C for 90 minutes, then cooled rapidly with air. The results of the tests performed show that mass variations in Cu and Zn metals can affect the hardness and tensile strength values of the alloy. The greater the mass of Cu metal and the smaller the mass of Zn metal, the higher the hardness and tensile strength values of the CuAlZn alloy remember the shape.The results of the test performed showed that variations in metal mass in Cu and Zn metal could affect the hardness and tensile strength values of the alloy. The greater the mass of Cu metal and the smaller the mass of Zn metal, will produce a higher value of hardness and tensile strength of Shape Memory Alloy.
Analisa Kegagalan Baut Pengikat Pelat Trunnion Linner pada Unit Cement Mill 1 Di PT. X Hendri, Darwin; Irwansyah, Irwansyah; Susanto, Herdi; Ali, Syurkarni
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 10, No 1 (2024): April
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v10i1.8815

Abstract

This research aims to identify the causes of the failure of the fastening bolts for the trunnion plate on cement mill unit 1 at PT. X. The research method used is an empirical study consisting of two main phases. The first phase involves identifying the causes of bolt fractures through macroscopic observations to examine the patterns of bolt fractures. The second phase involves analyzing the forces acting on the bolts by calculating the inertial forces generated due to torque tightening, followed by determining the centrifugal forces produced by the ground material and calculating the bending moments affecting the bolts. The results of this research revealed that the main cause of bolt failure is the presence of crack patterns characterized by significant plastic deformation in the bolt body; this type of fracture is categorized as ductile fracture. Analysis of the forces acting on the bolt also revealed that the stress applied to the bolt exceeds its strength capacity. The stress reached 436 MPa, whereas the bolt's strength was only around 330 MPa (yield strength). The findings of this research are expected to serve as initial data for further research that will investigate the metallurgical aspects as a deeper cause of bolt failure.
Co-Authors Andri Herlambang Aries Aries Asnim fuaddi Bantu Hotsan Manullang Budiarto Delly Syahputra Din Aswan A Ritonga Farizal, Teuku Firman Yulitda Fitria Ramadani Hendri, Darwin Herdi Susanto Herri Darsan Irwansyah Irwansyah Julian JUNAIDI Luthfi Hakim M Khalil M Taufik Mahmuddin Marbun Muhammad Idris Muhammad Yusuf Rahmansyah Siahaan Pribadyo Pribadyo Rita Hartati Safrijal Safrijal Safrizal - Sandi Saputra Siswo Pranoto Stefanus Andika Debby Purwanto Sulaiman Ali T.M Aziz Pandria T.M Aziz Pandria TA Nizardi Yopan Rahmad Aldori Zahir Raditya Zakir Husin Zulyaden, Zulyaden